Biology › Nutrition, digestion and health evidence
Nutrition, digestion and health evidence
Unit B10 · 3 lessons.
Notes
Illustrated notes for each topic in this unit, with worked examples and a checklist of objectives.
- Digestion and absorption in the human gut
Digestion as hydrolysis; the pH of the mouth, stomach, duodenum and ileum and which enzymes work in each; salivary and pancreatic amylase and the…
- Diet, energy and how to read a health claim
Energy balance, basal metabolic rate and what sets it; the energy value of carbohydrate, protein, fat and alcohol; what a balanced diet must supply…
- Cholesterol, atheroma and what a risk factor means
Cholesterol as a sterol and what it is needed for; lipoproteins as vehicles, with chylomicrons, VLDL, LDL and HDL distinguished by density and cargo…
Questions
50 original questions across 3 topics, every one with a point-by-point mark scheme.
Practical work
The practical capabilities this unit's work belongs to, each with its techniques, its calculations and the errors that cost marks.